196139706 has 32 divisors (see below), whose sum is σ = 448741248. Its totient is φ = 55987200.

The previous prime is 196139687. The next prime is 196139719. The reversal of 196139706 is 607931691.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74346 + ... + 76938.

It is an arithmetic number, because the mean of its divisors is an integer number (14023164).

Almost surely, 2^196139706 is an apocalyptic number.

196139706 is an abundant number, since it is smaller than the sum of its proper divisors (252601542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196139706 is a wasteful number, since it uses less digits than its factorization.

196139706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 196139706 is about 14004.9886112057. The cubic root of 196139706 is about 581.0165545608.

The spelling of 196139706 in words is "one hundred ninety-six million, one hundred thirty-nine thousand, seven hundred six".